Fluke 1560 Black Stack - 2560;2567 SPRT Module; Description; Specifications

7 2560/2567 SPRT Module
This section explains the features and operation of the optional 2560/2567
SPRT Module.
7.1 Description
The 2560/2567 SPRT Module is an add-on module that allows the 1560 to
measure temperature with SPRT, PRT, and RTD sensors. These modules are ca
-
pable of measuring temperature with very high accuracy. The Model 2560 ac
-
cepts two or four-wire sensors with nominal resistance of 25Ω or 100Ω, while
the 2567 accepts two or four-wire sensors with nominal resistance of 500Ω or
1000Ω. The modules use 1 mA excitation current to minimize sensor self-heat
-
ing. The excitation current alternates polarity to minimize the effects of thermo
-
electric offsets. Two sensors can be connected to the 2560/2567 simultaneously
and measured alternately.
7.2 Specifications
2560 2567
Resistance range
0to400
Ω 0to4K Ω
Resistance accuracy, one-year
1
0to25 Ω : 0.0005 Ω
25 to 400 Ω : 20 ppm of
reading
0to250
Ω : 0.00625 Ω
250 to 4K Ω : 25 ppm of
reading
Resistance accuracy, short-term
1, 2
0to25 Ω : 0.00025 Ω
25 to 400 Ω : 10 ppm of
reading
0to250
Ω : 0.00375 Ω
250 to 4K Ω : 15 ppm of
reading
Temperature accuracy (typical, not includ
-
ing sensor uncertainty)
1
–100°C
0°C
100°C
200°C
300°C
400°C
500°C
600°C
±0.003°C
±0.005°C
±0.007°C
±0.010°C
±0.012°C
±0.014°C
±0.017°C
±0.020°C
±0.004°C
±0.006°C
±0.009°C
±0.012°C
±0.015°C
±0.018°C
±0.021°C
±0.025°C
Temperature coefficient
1
0.5 ppm/°C 2.5 ppm/°C
Excitation current 1.0, 1.4mA; 1 Hz
Maximum lead resistance
100
Ω
Sample time 2 seconds
Number of channels 2
Recommended operating temperature
range
1
18 to 28°C (64 to 82°F)
Absolute operating temperature range 5 to 35°C (40 to 95°F)
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7 2560/2567 SPRT Module
Description